| Section 1: Demographic data (9 items) | |
| Item 1 | Age |
| Item 2 | Gender |
| Item 3 | Marital status |
| Item 4 | Number of people sharing household |
| Item 5 | Has any household member been diagnosed with COVID‐19? |
| Item 6 | Education level |
| Item 7 | Region in Spain |
| Item 8 | Diagnosed chronic co‐morbidities |
| Item 9 | Informed consent |
| Section 2: Pain‐related outcomes (30 items) a | |
| Item 10 | Pain location(s) |
| Item 11 | Higher pain intensity in a numerical rating scale (0–10) |
| Item 12 | Pain duration (in months) |
| Item 13 | Pain frequency |
| Item 14 | Pain evolution during lockdown |
| Items 15–20 | Pain interference (6 items, 0–10, out of a total of 60) |
| Item 21 | Changes in pharmacological treatment for pain during lockdown |
| Item 22 | Changes in non‐pharmacological treatment for pain during the lockdown |
| Item 23 | Would you have visited your chiropractor during lockdown if available? |
| Item 24 | Date of initiation of chiropractic care |
| Items 25–28 | Pain catastrophizing scale, short version (4 items, 0–4, out of a total of 16) |
| Items 29–39 | Tampa Scale of Kinesiophobia, short version (11 items, 1–4, out of a total of 44) |
| Section 3: Psychosocial impact of COVID‐19 (31 items) a | |
| Item 40 | COVID‐19 diagnosis |
| Item 41 | COVID‐19 symptoms |
| Item 42 | Contact with COVID‐19 cases |
| Item 43 | Visits to healthcare professionals (for COVID‐19 or pain) in the previous 2 weeks |
| Item 44 | If affirmative, detail which professional(s) |
| Item 45 | Current employment status |
| Item 46 | Changes in employment status during the lockdown |
| Item 47 | Restrictions which had more direct impact |
| Items 48–56 | Degree to which emotions are experienced with regards to the pandemic (9 items, 0–10): Sadness, Worry, Loneliness, Anger, Helplessness, Anxiety, Surprise, Relief, Hope |
| Items 57–63 | Degree to which the pandemic or related situations evoke stress (7 items, 0–10): pandemic‐related stress, restrictions‐related stress, own's health stress, fear of economic difficulties, fear of food shortage, fear of resources shortage, loved ones’ health stress |
| Items 64–70 | General Anxiety Disorder scale (7 items, 0–3, out of a total of 21) |
a
A total of three instructional manipulation checks were introduced in the form of three screening questions.